package com.xgkj.diyiketang.util;

import android.app.Activity;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.os.storage.StorageManager;
import android.provider.DocumentsContract;
import android.provider.MediaStore;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class GetImagePathUtil {
	private static final String TAG = "GetImagePathUtil";
	private static String externalPath;
	private static String insidePath;
	private static StorageManager mStorageManager;
	private static Method mMethodGetPaths;
	private static String[] paths;


	public static String getPath(final Context context, final Uri uri) {
		  
	    final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;  
	  
	    // DocumentProvider  
	    if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {  
	        // ExternalStorageProvider  
	        if (isExternalStorageDocument(uri)) {  
	            final String docId = DocumentsContract.getDocumentId(uri);  
	            final String[] split = docId.split(":");  
	            final String type = split[0];

				getPath(context);

	            if ("primary".equalsIgnoreCase(type)) {
	                return insidePath + "/" + split[1];
	            }else {
					return externalPath+"/"+split[1];
				}
	        }
	        // DownloadsProvider  
	        else if (isDownloadsDocument(uri)) {  
	  
	            final String id = DocumentsContract.getDocumentId(uri);  
	            final Uri contentUri = ContentUris.withAppendedId(  
	                    Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));  
	  
	            return getDataColumn(context, contentUri, null, null);  
	        }  
	        // MediaProvider  
	        else if (isMediaDocument(uri)) {  
	            final String docId = DocumentsContract.getDocumentId(uri);  
	            final String[] split = docId.split(":");  
	            final String type = split[0];  
	  
	            Uri contentUri = null;  
	            if ("image".equals(type)) {  
	                contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;  
	            } else if ("video".equals(type)) {  
	                contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;  
	            } else if ("audio".equals(type)) {  
	                contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;  
	            }  
	  
	            final String selection = "_id=?";  
	            final String[] selectionArgs = new String[] {  
	                    split[1]  
	            };  
	  
	            return getDataColumn(context, contentUri, selection, selectionArgs);  
	        }  
	    }  
	    // MediaStore (and general)  
	    else if ("content".equalsIgnoreCase(uri.getScheme())) {  
	  
	        // Return the remote address  
	        if (isGooglePhotosUri(uri))  
	            return uri.getLastPathSegment();  
	  
	        return getDataColumn(context, uri, null, null);  
	    }  
	    // File  
	    else if ("file".equalsIgnoreCase(uri.getScheme())) {  
	        return uri.getPath();  
	    }  
	  
	    return null;  
	}
	
	public static String getDataColumn(Context context, Uri uri, String selection,  
	        String[] selectionArgs) {  
	  
	    Cursor cursor = null;  
	    final String column = "_data";  
	    final String[] projection = {  
	            column  
	    };  
	  
	    try {  
	        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,  
	                null);  
	        if (cursor != null && cursor.moveToFirst()) {  
	            final int index = cursor.getColumnIndexOrThrow(column);  
	            return cursor.getString(index);  
	        }  
	    } finally {  
	        if (cursor != null)  
	            cursor.close();  
	    }  
	    return null;  
	}  
	
	public static boolean isExternalStorageDocument(Uri uri) {  
	    return "com.android.externalstorage.documents".equals(uri.getAuthority());  
	}  
	
	public static boolean isDownloadsDocument(Uri uri) {  
	    return "com.android.providers.downloads.documents".equals(uri.getAuthority());  
	} 
	
	public static boolean isMediaDocument(Uri uri) {  
	    return "com.android.providers.media.documents".equals(uri.getAuthority());  
	}  
	
	public static boolean isGooglePhotosUri(Uri uri) {  
	    return "com.google.android.apps.photos.content".equals(uri.getAuthority());  
	}


	private static void getPath(Context mContext) {
		mStorageManager = (StorageManager) mContext.getSystemService(Activity.STORAGE_SERVICE);

		try {
			mMethodGetPaths = mStorageManager.getClass().getMethod("getVolumePaths");
		} catch (NoSuchMethodException e) {
			e.printStackTrace();
		}

		paths =  getVolumePaths();

		for (int i=0;i<paths.length;i++) {
			PalLog.e(TAG, "存储路径" + i + ":" + paths[i]);
		}

		if (paths.length>=1){
			insidePath = paths[0];
		}

		if (paths.length>=2){
			externalPath = paths[1];
		}
		/*for (int i=0;i<paths.length;i++) {
			PalLog.e(TAG, "存储路径" +i+":"+ paths[i]);
			String path = paths[i];
				if (Environment.isExternalStorageRemovable()) {
					PalLog.e(TAG,"外置sd卡");
					if (path.equalsIgnoreCase(Environment.getExternalStorageDirectory().getAbsolutePath())) {
						externalPath = path;
					} else {
						if (path.indexOf("usb") == -1) {
							insidePath = path;
						}
					}
				}else {
					PalLog.e(TAG,"内置sd卡");
					if (path.equalsIgnoreCase(Environment.getExternalStorageDirectory().getAbsolutePath())) {
						insidePath = path;
					} else {
						if (path.indexOf("usb") == -1) {
							externalPath = path;
						}
					}
				}
			}*/
		}

	public static String[] getVolumePaths() {
		String[] paths = null;
		try {
			paths = (String[]) mMethodGetPaths.invoke(mStorageManager);
		} catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		} catch (InvocationTargetException e) {
			e.printStackTrace();
		}
		return paths;
	}

}
